-PYTHONPATH=$PYTHONPATH:/opt/local/lib/python2.5/site-packages/
-# thierry : I have this in my .bashrc now
-#PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/:$PYTHONPATH
-# ditto
-#PYTHONPATH=$HOME/stree/sfa/trunk:$PYTHONPATH
-export PYTHONPATH
+DIR=$(dirname $0)
+CONTENTS=$(dirname $DIR)
+RESOURCES=$CONTENTS/Resources
+FRAMEWORKS=$CONTENTS/Frameworks